Premium Platinum Laser Platinum® spark plugs provide high ignitability and longer service life. Dual platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions. Laser welded Platinum center electrode tip Platinum disc welded to backside of ground electrode provides long life Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties Faster starts and quicker acceleration Better fuel economy and lower emissions Warranty Information Alternate/OEM Part Number(s): BCPR5EP11